Home2021 Treaties and Agreements ...Japan (21-331.1) – Protocol Amending Agreement of January 22, 2016 hide Japan (21-331.1) – Protocol Amending Agreement of January 22, 2016 TIAS Office of Treaty Affairs March 31, 2021 Defense: Status of Forces Signed at Tokyo February 24, 2021; entered into force March 31, 2021. With exchange of notes. Amendment of agreement signed January 22, 2016: TIAS 16-401.3. *This publication is being reissued due to a change in the TIAS number. Download Agreement [4 MB] Tags Defense Japan Status of Forces Agreement Treaties